diff options
Diffstat (limited to 'fbreader/src/formats/pdb/ZTXTStream.cpp')
| -rw-r--r-- | fbreader/src/formats/pdb/ZTXTStream.cpp | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/fbreader/src/formats/pdb/ZTXTStream.cpp b/fbreader/src/formats/pdb/ZTXTStream.cpp deleted file mode 100644 index 2dc549c..0000000 --- a/fbreader/src/formats/pdb/ZTXTStream.cpp +++ /dev/null @@ -1,77 +0,0 @@ -/* - * Copyright (C) 2004-2012 Geometer Plus <contact@geometerplus.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -#include <ZLFile.h> -#include <ZLZDecompressor.h> - -#include "ZTXTStream.h" - -ZTXTStream::ZTXTStream(const ZLFile &file) : PdbStream(file) { -} - -ZTXTStream::~ZTXTStream() { - close(); -} - -bool ZTXTStream::open() { - if (!PdbStream::open()) { - return false; - } - - myBase->seek(2, false); - unsigned short recordNumber; - PdbUtil::readUnsignedShort(*myBase, recordNumber); - myMaxRecordIndex = std::min(recordNumber, (unsigned short)(header().Offsets.size() - 1)); - myBase->seek(4, false); - PdbUtil::readUnsignedShort(*myBase, myMaxRecordSize); - if (myMaxRecordSize == 0) { - return false; - } - myBuffer = new char[myMaxRecordSize]; - - myRecordIndex = 0; - - return true; -} - -bool ZTXTStream::fillBuffer() { - while (myBufferOffset == myBufferLength) { - if (myRecordIndex + 1 > myMaxRecordIndex) { - return false; - } - ++myRecordIndex; - std::size_t currentOffset = recordOffset(myRecordIndex); - // Hmm, this works on examples from manybooks.net, - // but I don't understand what this code means :(( - if (myRecordIndex == 1) { - currentOffset += 2; - } - if (currentOffset < myBase->offset()) { - return false; - } - myBase->seek(currentOffset, true); - const std::size_t nextOffset = recordOffset(myRecordIndex + 1); - if (nextOffset < currentOffset) { - return false; - } - myBufferLength = ZLZDecompressor(nextOffset - currentOffset).decompress(*myBase, myBuffer, myMaxRecordSize); - myBufferOffset = 0; - } - return true; -} |
